Two-piece drum for rotary draw works



May 22, 1928."

. E. TIMBS TWO-PIECE DRUM FOR ROTARY DRAW WORKS Filed May 25, 1927 2 D O .D D 00 0o 8W @3W DO r. 0 7 E n 0 0 0 l flu g J I; a W i 1 1 M l l m n a a? D 00 w 00 u 6 a M H a H \W Patented May 22,

UNITED STATES.

PATENT OFF-ICE;

EDWARD TIMES, OF LOS ANGEIIES, CALIFORNIA, ASSIGNOR TO THE NATIONAL SUPPLY OOMPANY'OI' DELAWARE, OF NEW YORK, N. Y., A' CORPORATION OF DELAWARE.

' 'zrwo-rmcs mum son nornmr nmiw woaxs.

. Application filed Kay 25, 1927. Serial No. 194,046.

two sections connected together atmsubstan tially the mid-section of the spool of the drum and each section including substantially one-half of the spool and being formed integral with a circumferential flange to which a brake rim is secured.

In rotary drawworks, the principal problem presented in. the construction of the drum 1s to 'obtain a drum large enough to carry a length of line of several thousand feet without unnecessarily extending the length of the drum. The drum of the drawworks mu'stbe mounted between a pair of posts, the distance apart of which is regulated by the position of the rotary drawworks in relation to the rotary machine which is driven by the rotary drawworks. The rotary drawworks within which the drum construction embodying this invention is adapted for use is constructed for the drilling of oil wells, the depth of which may be in excess of 4,000 feet. As drilling meth-- ods have improved, there is required greater U speed of reeling andhnreeling the line by means of which the rotary drill stem and drill are supported. Time is often a very essential feature in thesuccessful drilling of an oil well, particularly in localities where several are prospecting for oil at" the same time. This time requirementisa sec- 0nd reason why the drum for a rotary draw works should be large and also determines the diameter to which the spool of the drawworks should be constructed so that, without rotatingt-he drum at, an excessive speed, the

line will be fed from the drum or reeled upon the drum at a rapid :rate. In constructing largedrums for drawworks, it is diflicult if not impossible-to construct the.

' drawworks of one single portion of material.

In. constructing drawworks, it is preferable that the end flanges formed at the ends of the drawworks's 001 be formed integral'with the-spool so at the line, when reeled on the spool, does notgtend to force the flanges outwardly away fromthe end'ofthe spool,

allowing the line to. drop into the space formed by the forcing of the flange away from the spool'so that the line catches. The

supports great loads and it is, therefore,

necessary to construct the spool of the draw- 56 works of great strength.

It is, therefore, an object of this invention to provide a drum for rotary drawworks constructed of two substantially complementary sections, each of which includes a portion of the drawworks drum havin an integral flange at its end. and in whic draw-' works, there is provided means for connecting the portions of the spool and for reenforcing the same at the. point of connection.

line "wound upon the spool of the drawworki Another object of this invention is to prov vention, it is believed, will be apparent from the following detailed description of a preferred embo iment of the invention, as il-' lustratedin the accompanying drawings. -ln the-drawings: y

Figure l is 'a front elevation, partly in vertical mid-section of a rotary drawworks drum embodying this invention, illustrating the same as secured to the drum shaft and journaled in bearings secured to the-posts of the rotary 'drawworks.

Figure 2 is a detached fragmental sectional view of the drum construction embodying this invention. 7

Fi ure 3 is a fragmental sectional View of tl ie drawworks construction embodying this invention illustrating the fragments of the spoolof the drawworks secured to the internally mounted connecting means by which "the portions of the spool of the drawworks are connected together and-braced at substantially the midpoint of a rotary drawworks.

In the preferred embodiment of this insubstantially v any suitable or desirable construction, as

a is well understood in the art.

The drum is mounted upon the shaft 3 v in any suitableor desirable manner and may be either journaledj on-the shaft 3 or secured to the same, depending upon the type of drivecwhich it desired to employ for.

driving the same...

/-;; 2L Eachoi the"pi6ft61is and 7 is also I vformed integral with an inwardly extending The. dru nih is two comple mentary portions 6 and 7. Each of the por-' of the bearings 4 may be-oi tions6 and 7 is formed to include substantially one-half of the spool 8. of the drum 5,

as indicated at 9 and"10.- --TheenQ LiQn or F A portions 9. and 10 'arb formed integral with- 2; ii-large (1 tions 9 and 10 to the ring 21, the periphery of the spool is then turned to cut away the excess welding materialand finish the surface of the spool of the drum.

Having fully described my invention, it is to be understood that I do not wish to be limited to the details herein set forth, but my invention is of the scope of the appended claims.

I claim: c 1. A large drum for rotary drawworks inqjuding two sections which when connecte I are united at substantially themid-seetion of the drawworks spool, each section including substantially one-half of the spool and so being formedTinte'gr-al with' a circumferent'ially extending flange, and means for se curing the sections togethere 1 -i'or rotarys drawworks annular flanges 11 and 12 at their opposed having two-sections formed to include sub-Jig ends. Secured to the-annular flanges 11 an i t a t'gfi pne-hawie spool of the drum 12in any suitable or desirable manner: as is well understood in the art, are brake drums 13 and 14.1

' flange 15 which-is-also formed integral with an elongated hub 16. The .hubs 16 support portions 6 and-'7 is reeniorced-by means of apl'urality of sgiiced webs 17, which-extend portions 9 and; 10 'of .the' drum. .The reen forcing webs 17Iare for the purpose of preventing the spool: from collapsing when the line 20 is wound :thereon.

. ltfiaans are provided for connectingthe spoolportions 8 and 9' at substantially the mid-sectionof'the-drum, which means also f ounted intermediate the. shou1ders18 f ably tion the shoulders 18 and 19, and are beveled in- A-fterthe welding channel and" include r'eenforc' means for reenforcing the spool ofthe rum at the midportion .thereofand are preferably of the ":follow; in cons ruction: i J

and 19 isza 21. The ring 21'isprefer- Ia casting formed to have a,oro ss-secsimilar to an I beam or. the like. Formed -around' the riphery' of the ring "21' is a oove 22. e ends 23 and 2& or the spoo portions 8 and 9 project beyond wardly, as indicated at 25, to provide a weld- ,in channel over ,the peripheral oo v.e 22.

assembling the; sections 6 an 7 of thedrum, the ring 21 is mounted adjaoentone ofthe shoulders 18- 'or 19and'the other section of the drawworks'isthen slid over the rin' 21. The welding channel'andperiphera groove are then filled with metal by welding, as indicated in Figure 3 at '26. ve 22 have been fill by welding meta the.

s w s as to secure .each of the spool porthe drum upon the shaft 3. Each of the opposed ends, and means for securing-the.

" sections together, and for bracing the same at the mid-section of the'spool;

3. A large drum' for rotary drawworks having two sections formed to include sub stantially one-half of the" drum spool, integral flanges at their opposed. ends, and

hubs adapted to fit closely the drum shaft, 05 I and 'a ring within and, welded to the'adjacent ends of the two sections.

" 4. A large drum for rotary draw v'vorks having two sections formed to include portions of the. drum spool, the ends of the 'mo spool being provided with inwardly projecting annular shoulders, and a ring mounted within the drum intermediate the shoulders and welded to the'end's of the ing a pair of sections including portien's'of the spool oftlie drum for-a rotary drawworks, theadjacentends' of thelspo'ol portions being adapted to be contacted at sub-jstantiallythe mid-section of the drum, an-

nular shoulders formed onthe interior' ofthe spool portions, a ring mounted within the spool portions intermediate the annular shoulders and having a circumferential peripheral portions groove. -v H -6.,A rotary drawworks drumyhaving; apair of complementary s 001 portions, the ends of the spool 'portions wardly to form a tapered welding channel, and a, reenforcing and connect' ring .mounted within the drum and welde there to throughthe tapered weldin'gcha'nnel.

fl. A rotary draw'works druni having'a 128' groove, and the ends of the spool 11: ei g welded "to the ring in; the I -pairfof complementary ,spgol portions, the

ends of the'spdolportions ,ugf'tapored out: wardly to form an annular taperedwelding"' channel, and a reenforcin and connectin ring mounted within the ruin and 'weldf' 1' portions. 5. A device of the class desciibe'd compris- 105 eing tapered outlsu thereto in a circumferential ri'phe'ral in the drum and welded thereto through the groove formed in the ring throng the said welding channel.

8. A rotary drawworks drum having a pair of complementary spool portions, the

ends of the spool portions being tapered outwardly to form a tapered wel in nel, annular shoulders formed adjacent the g chanends of the spoolportions, and a reenforc ing and connecting ring mounted within the drum and welded thereto through the tapered welding channel.

.9. A rotary drawworks drum having a pair of complementary spool portions, the ends of the spool portions being tapered ontwardly to form an annular tapered welding channel, annular shoulders formed adjacent the ends of the spool portions, and a reenforcing and connecting ring mounted within the drum and welded thereto in-a periph eral groove formed in the ring through the said welding channel.

10. A rotary drawworks drum having a pair of complementary spool portions, the

ends of the spool portions being tapered outwardly to form a tapered welding channel, and a reenforcing and connecting I-beam 9 ring mounted within the drum and welded thereto through the tapered'welding channel.

1-1. A rotar drawworks drum having a pair of comp ementary s'pool portions, the ends of the spool portions being tapered outwardly to form a tapered welding channel, annular shoulders ormed adjacent the ends of the-spool portions, and a reenforcreenforcin ing and connecting drum moimted-withtapered welding channeL 12. A rota drawworks drum havinga pair of comp ementary s 001 portions, the

end of the spool portions eing tapered outwardly to form a tapered weldin channel, the spool portions being forme integral with supporting hubs by means of which the dru'm is mounted upon a shaft, and a reenforcing and connecting ring mounted within the drum and having a peripheral groove, the spoolportions being welded to the ring by welding metal through the welding channel into t e peripheral groove.

13. A rotary drawworks drum having a pair of complementary spool portions hav-- ing integral flanges at'their opposed ends, the adjacent ends of the spool portions being tapered outwardly to form a tapered welding channel, and a reenforcin and connecting ring mounted within t e drum and welded thereto through the tapered welding channel. I

14. A rotary drawworks drum having a pair of complementary spool portions, the spool portions being formed integral with annular flanges at their oppose-d ends, brake rims secured to the annular flanges, and 'a within an their adjacent ends.

s i gned at Torrance, this 18th day of May 192 EDWARD 'I IMBS.

and connecting ring mountedwelded to the spool portions at 

